District 9 (2009)
This South African faux-documentary charts the arrival of an alien spacecraft over Johannesburg. We watch Wikus van de Merwe (Sharlto Copley) become infected and slowly morph into one of the creatures. Cue attempts to control the alien's weaponry and all-out civil unrest. The aliens, abusively dubbed "Prawns", are just fantastic. You feel genuine empathy for them as they are mocked, mistreated and forced into an internment camp.